Improved window-blind fastening



Qluittb gft-:ttes identit @Hire 'IHEOPHIIJUS STOVER, Ub GAMBRIDGEPORT, MASSCHUSEIVIS.

Lettera Patent No. 67,146, dated 'July 23, 1867.

IMPROVED WINDOW-BLIND FASTENING.

vlO ALL WHOM IT MAY CONCERN:

Beit known that I, TusoPmLus S'rovea, of Cambridgeport, in the county @f Middlesex, and State of Massachusetts, have invented certain new and useful Improvements in Blind-Fsstenings; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had' tothe accompanying drawings, making n. part of this specification, in Which- I Figure 1 is an outside view of a portion of awindow-blind having my invent-ion applied to it'.

Figure 2 is a vertical section through the lower portion of the blind, showingfthe inode of applying the litting-rod to the spring-catch. i

Figure 3 shows the improved double-catch driven into a vertical joint i'n brick-work for receiving the latch upon the blind when the latter is thrown open.

Figure 4 is a view of the catch applied to a horizontal joint in the brick-work.

Figure 5 is a view of the pin which holds the spring-latch in place.

Figure 6 is a perspective view of ai catch witha grooved shank for wooden buildings.

Figure 7 is a stool-staple for wocd-work.

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to improvements on devices which are designed for holding a window-'blind open or shut, as will be hereinafter described. f

To enable others skilled in the art to understand my invention, I will describe its construction and operation.

In the accompanying drawings, A represents a portion of a window-blind or shutter, and vB represents a strip of spring met-al, one end of which is bent and secured fast to the bottom edge of the blind. This strip is so applied that no part of it projects bey'ond the thickness of the blind, which is very important, for, when otherwise applied, blinds are liable to be broken or badly injured during the process of' painting or in transportation. YUpon the lower side and at or near the free end of this spring strip the latches a a1 are secured by riveting or otherwise. i These latches consist of two square studs formed on a piece, 11"', extending across the spring and secured to it, as stated. The lat-eh ais received by the catch C when the blind is closed, and the latch a is received by the catch D when the blindy is opened. In order to keep the latches and their springplate in proper position, and to strengthen the fastening, I employ a stay-pin, E, shown in figs. 1 and 5, which is driven through an oblong hole through the spring B and into the bott-0m edge of the blind until its shoulder b abuts against the edge of the blind, as shown in tig. The pin E is constructed with a. head, b', against which the spring-latch plate ahnts, and the shoulder b is for determining the distance for driving the pin into the blind, so that the latches a al shall be in a propel' plane, with respect to the two catches D and C, to be caught and held hy them. Besides serving as a vertical stay for the spring-latch plate this pin E also serves as a lateral support thercfor and prevents it from turning about its screw fastening or being strained or bent by shocks. The free end of the spring-plate B is reduced in width and turned up, as shown at B', fig. 2, and to this lip Il" a wire rod, g, is suitably attached, which passes up through a hole, t, mat -rtically through the blind-rail, and also through a plate, if, nn top of this rail, and has its upper end beiit so ..4 to form a hook for convenience in lifting the latches and their springplate. -The catch C is constructed withabevelled or inclined surface, e, for raising the latch as the blind is tightly closed, and it is also constructed with a shoulder, el, rising from the notch e, for the purpose of serving as a metallic abutment for receiving against it th'c latch a, as shown in fig. 2. The catch D, which is designed for keeping the blind open when required, may be constructed like the catch C, when used for wooden buildings, but for brick buildings, where this catch is to be driven between the bricks, I`construct it as shown in 'figs 3 and 4. The catch D is double, that is to say, it has two inclined faces k c" two notches Z l', for receiving the latch-piece a, and two shoulder abutments m m. This construcf tion adapts theV catch for being driven into a vertical `joint between the bricks of the wall, as shown in fig. 3, and by reversing it it is adapted for vbeing driven into a horizontal joint, as shown in fig. 4.. In constructing the shanks or spikes for catches which are to bc driven into wood I shall make them as shown in fig. 6. This shank n is tinted or groovcd and tapered so as to present a large surface to the wood into which it is driven, and thereby have a firmer hold therein than either a hat or square shank would affortL Such form of shank fcannot be twisted or turned in wood' very easily, and it can be driven without liability of splitting the wood.

In all my catches, whether for wood-work or masonry, I shall have the slioulder :ibutments for' receiving tbc shocks in opening or closing tho blind, :is above described.

Having described my invention,`\rliat I claim as new, :rnd'dcsire to scettro by Lett-ers Patent,- isi- 1. The censtruction of two latches a aupon the spring-plz1te B, for the purpose of' boing received and hold by notched catches, substantially as described.

2. The piu E, constructed with n head, b', and shoulder or gauge, upon it, for tlic purpose ol' boing used in combination with a latch-spring, B, and suitable catching devices, in thc construction of :i window-fastening, as sut forth.

3. 'lliclinck shoulder ubtitmouts'upun the catches, wlicn the sonic arc rziisttl liiglitr tlinn tlic forward shoulders, and prevent /lie latt'lis passing too far back, as herein set forth.

4. A rcvorsible blind-catch, D, which is adapted for being driven into vcrticulor horizontal joints between the bricl: of a wall, substantially us Iliavc explained. V l

5. 'llio combination of lifting-rod g and double-catch or latch-studs a al, with u. spring, B, n'liicli is applied to the bottom edge of a. vwindow-blind and sustaincd by a pin, E, substantially as described.

THEOPHILUS STOVER.

Witnesses:

S. S. JACKSON, MARK NEWMAN. 

